While there is no official "paper" or research document for a Kirby and the Forgotten Land
To alter Kirby's progress, players typically use community-developed tools: Kirby And The Forgotten Land Save Editor
For context on what can be edited within a save file, the following documentation outlines the game's progression metrics: Save File Metrics Kirby and the Forgotten Land While there is no official "paper" or research
Manually unlock all Gacha Figures or mark Waddle Dees as rescued to reach 100% completion. Kirby And The Forgotten Land Save Editor